Description
12V 20Ah Lithium Battery — CLI20-12
The Canbat CLI20-12 is a 12V 20Ah lithium battery delivering 256Wh of usable LiFePO4 energy in a compact 182 × 77 × 168 mm footprint at just 5.5 lbs (2.49 kg) — a compact utility and auxiliary lithium platform engineered for remote monitoring systems, field instrumentation, communications equipment, access control systems, compact surveillance systems and sealed lead-acid replacement applications where long service life, low maintenance, and compact deployment define the specification. At 5.5 lbs, it is one of the most compact and lightweight LiFePO4 batteries in the Canbat standard lineup, purpose-built for low-to-moderate draw auxiliary deployments where size, weight, and long-term reliability define the requirement.
The CLI20-12 is designed as a direct replacement for 12V 20Ah sealed lead-acid batteries across a wide range of commercial, industrial, and infrastructure applications — delivering twice the usable energy of a comparable SLA battery at a fraction of the weight, with 3,000–5,000 cycle life that significantly extends the service interval between battery replacements compared to lead-acid alternatives.
It ships free across Canada and the USA, carries a 10-year warranty, and is built with UL 1642 certified cells. For Canada and USA orders, there are no import duties or cross-border complications.
The Lithium Upgrade from Sealed Lead-Acid
Sealed lead-acid batteries at 20Ah nominal deliver approximately 10Ah of usable energy before the 50% depth-of-discharge limit that protects their cycle life — and typically provide 300–500 cycles before capacity degrades to the point of replacement. The CLI20-12 delivers its full 20Ah at 100% usable depth of discharge on every cycle, with 3,000–5,000 cycle life that represents a ten-fold or greater improvement in service life over comparable SLA batteries in the same capacity range.
For commercial and infrastructure applications where battery replacement requires a service visit, scheduled maintenance, or field technician deployment, the CLI20-12’s extended cycle life directly reduces total cost of ownership — fewer replacement events, fewer service calls, and lower long-term energy storage costs despite a higher upfront investment than SLA alternatives.
At 5.5 lbs (2.49 kg), the CLI20-12 weighs significantly less than a sealed lead-acid battery of comparable capacity — reducing equipment weight, improving portability, and simplifying installation in weight-sensitive or access-constrained deployments.
Applications
Remote Monitoring & Field Instrumentation
The CLI20-12 is well suited for remote monitoring stations, environmental sensing arrays, weather instruments, pipeline monitoring equipment, and field data collection systems requiring a compact, reliable 12V power source with minimal maintenance overhead. Its low self-discharge rate — under 3% per month — supports installations that operate unattended for extended periods between service visits, and its 3,000–5,000 cycle life reduces the frequency of battery replacement in remote or difficult-to-access locations.
Access Control, Security & Communications
For access control systems, compact security installations, alarm panels, gate operators, and portable communications equipment where a sealed lead-acid battery is the conventional power source, the CLI20-12 provides a direct lithium upgrade — same voltage, significantly lower weight, longer service life, and maintenance-free operation that eliminates the periodic replacement cycles required by SLA alternatives in comparable applications.
Mobile Equipment & Auxiliary Power
For compact mobile equipment platforms, robotic systems, mobile service equipment, traffic control devices, and auxiliary power systems in service vehicles where physical size and deployment weight are constrained, the CLI20-12 delivers lithium performance in a form factor that replaces conventional SLA batteries without requiring changes to the surrounding equipment architecture.
Marine Electronics & Compact Auxiliary Systems
For compact marine electronics installations — dedicated fishfinder banks on kayaks, small vessel navigation electronics, and compact auxiliary loads — the CLI20-12 provides reliable all-day energy reserve in a lightweight sealed unit. No off-gassing, no terminal corrosion, and no maintenance in confined compartments.
12V 20Ah Lithium Battery for Monitoring, Access Control & Auxiliary Systems
The CLI20-12 is Canbat’s compact utility lithium battery — designed for buyers sourcing a 12V 20Ah lithium battery for remote monitoring systems, access control equipment, communications infrastructure, compact mobile platforms, and sealed lead-acid replacement applications requiring long service life, maintenance-free operation, and reliable performance in compact deployments.
For Canadians sourcing a 12V 20Ah lithium battery, the CLI20-12 ships free with no import duties, is backed by a Canadian technical team, and carries a 10-year warranty. Compatible with all major chargers and charge controllers that support a LiFePO4 charging profile.
Runtime & Performance
The CLI20-12 delivers 256Wh of usable energy at 12V nominal — all accessible at 100% depth of discharge with stable voltage throughout:
| Application / Load | Average Draw | Estimated Runtime |
|---|---|---|
| Remote monitoring / instrumentation | ~0.5–2A | ~10–40 hours |
| Access control / security systems | ~1–3A | ~6–20 hours |
| Portable communications equipment | ~1–3A | ~6–20 hours |
| Marine fishfinder + nav lights | ~3–5A | ~4–6 hours |
| LED lighting & low-draw electronics | ~2–4A | ~5–10 hours |
Runtime figures are based on 100% usable depth of discharge. The CLI20-12 maintains stable voltage throughout the discharge cycle — consistent performance for electronics and instrumentation loads from start to finish.
Series & Parallel Expandability
The CLI20-12 supports both series and parallel connections — up to 4 units in either configuration — for systems requiring greater capacity or higher system voltage.
| Configuration | Units | System Voltage | Total Capacity |
|---|---|---|---|
| Single unit | 1 | 12V | 20Ah / 256Wh |
| Parallel x2 | 2 | 12V | 40Ah / 512Wh |
| Parallel x3 | 3 | 12V | 60Ah / 768Wh |
| Parallel x4 (max) | 4 | 12V | 80Ah / 1,024Wh |
| Series x2 | 2 | 24V | 20Ah / 512Wh |
| Series x3 | 3 | 36V | 20Ah / 768Wh |
| Series x4 (max) | 4 | 48V | 20Ah / 1,024Wh |
The CLI20-12’s modular architecture supports the full range of 12V, 24V, 36V, and 48V system configurations.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | CLI20-12 |
| Chemistry | Lithium Iron Phosphate (LiFePO4) — Cylindrical cells |
| Nominal Voltage | 12V (12.8V nominal) |
| Capacity | 20Ah |
| Energy | 256Wh |
| Cycle Life | 3,000–5,000 cycles at 100% DoD |
| Max Continuous Discharge | 20A |
| Peak Discharge | 80A for 3 seconds |
| Max Charge Current | 20A (recommended 10A) |
| Charging Temperature | 0°C to 45°C (32°F to 113°F) |
| Discharge Temperature | -20°C to 60°C (-4°F to 140°F) |
| IP Rating | IP54 — splash and dust resistant |
| Weight | 5.5 lbs (2.49 kg) |
| Dimensions (L x W x H) | 182 x 77 x 168 mm / 7.17 x 3.03 x 6.61 in |
| Terminal Type | M6 / 1 — bolts included |
| Mounting | Upright or on side |
| Parallel Expansion | Up to 4 units (80Ah / 12V maximum) |
| Series Expansion | Up to 4 units (24V, 36V, or 48V systems) |
| BMS Protection | Over-charge, over-discharge, short circuit, over-current, temperature extremes, cell balancing |
| Bluetooth Monitoring | Optional add-on (Canbat BT app — free for iOS and Android) |
| Storage | Store at 80–100% SoC in a cool, dry environment |
| Certification | UL 1642 certified cells |
| Warranty | 10 years |
| Shipping | Free across Canada and USA — no import duties |
Battery Management System and Bluetooth Monitoring
The CLI20-12’s integrated BMS manages cell-level protection and balancing automatically — no external battery management required.
- Over-discharge protection — prevents cell damage from excessive depth of discharge
- Over-charge protection — disconnects at the correct voltage ceiling
- Short circuit and over-current protection — responds within milliseconds
- High-temperature cutoff — protects cells during charging in hot environments
- Cell balancing — maintains consistency across cells over thousands of cycles
The optional Bluetooth add-on connects the battery to the free Canbat BT app, available for iOS and Android. Monitor state of charge, voltage, current, and cell temperature in real time — useful for remote monitoring deployments and installations where direct battery access is limited.
System Compatibility and Installation
The CLI20-12 is compatible with any charger, solar charge controller, or inverter/charger that supports a LiFePO4 charging profile. When replacing a sealed lead-acid battery, verify that the charging system’s voltage settings are configured for lithium — most modern chargers include a LiFePO4 preset or adjustable voltage settings. M6 terminals with bolts are included. The battery installs upright or on its side.
For system sizing assistance or compatibility questions, Canbat’s Canadian technical team is available by phone, email, and live chat.
Canadian Supply, Support and Warranty
Canbat is a Canadian battery manufacturer. The CLI20-12 ships free to any address in Canada and the USA. Canadian and US buyers pay no import duties and face no cross-border complications on their orders.
The CLI20-12 is backed by a 10-year warranty and supported by a Canadian technical team available by phone, email, and live chat. Warranty claims can be submitted directly with Canbat — with no overseas support queues and no runaround.
Jesse B. –
Got this 20ah lithium for my dad’s mobility scooter and he’s very happy.
Margaret B. –
This 20Ah lithium battery has the exact dimensions as the 20Ah lead acid I have in my scooter. Ever since my upgrade to lithium, I have been able to go so far in my scooter before another recharge is required. Very satisfied and highly recommended, especially for those that have long trips in their electric wheelchair or scooter.
Chris W. –
I have two of these batteries, but don’t let the size fool you. They have been powering a 300 watt pure sinewave inverter (Giandel) which is running my laptop, two tablets and charging a cell phone. They have been running 38hrs and still have 40% SOC. I am very pleased! Time to charge them with my portable solar panels.
(2) 12volt 20 AH wired in parallel
Pam G. –
Got this lithium battery for my husband. He uses it for his Garmin fish tracker and he loves it.
Joe D. –
I recently bought a 12v 20ah lithium battery from Canbat. The battery is super light. I leave it in my car whenever I need to power up my tools.
Benjamin D. –
I am loving this 12v 20ah lithium battery I just bought. I have one for my security system at home and also one for me to carry around in my car.
Ray P. –
Recently I made an upgrade from a lead-acid battery to a lithium battery. The battery is easy to handle and provides much more life than the SLA battery.
Raymond T. –
Well packaged and quick shipping provided by Canbat. They added a few gifts inside the box as well. Highly appreciated.
Dylan K. –
Perfect 12v 20ah battery for my lawnmower. Just finished a 6-hour shift without having any issue or power drainage.
Sam K. –
Great lithium battery size for the kayak angler. The 12v 20ah provides long-lasting power. Worth the price!
Zoe D. –
Just had a call with Canbat. They gave me a few options of which batteries to buy. I wanted to buy the 12v 30ah lithium battery or the 12v 40ah lithium battery, but I was on a budget. They told me the 12v 20ah will do the job, so I got that instead for my dad’s gift. The battery indeed works perfectly for the application.
Cody P. –
Canbat has great customer service. I had an issue with the lithium battery I bought recently and they told me to bring it back, and they’ll have a look at it. Just a few minutes later they fixed the battery. I was using the wrong charger and the BMS went into protection mode to protect the cells. They somehow activated the battery back and advised me to use a Victron lithium charger. Since then, it’s been working great. Thank you.
Janet K. –
The lithium battery works well. I use the 12v 20ah battery in my trailer to raise and lower my bed. Never been this happy with a battery lol
Hendrick K. –
Just bought a 12v 20ah lithium battery for my fishing trip. The performance of the battery was well expected. Very lightweight battery and small. Did a great job on my equipment.
Wei W. –
Awesome battery. I have it to power up my portable fishing shack lights. The lithium 20ah provides great power, unlike the lead-acid battery which dims the light during discharge. The weight compared to my old SLA battery was noticeable when walking. The performance does not change when the temperatures go below -10.
Don B. –
I haven’t got the chance to use the lithium battery I just bought, but they responded to all my inquires very fast by chat. They provide quick and free shipping! Planning to use the battery to power up some electronics when I am outside of the city.
Jim P. –
My old SLA battery just died. I needed a new one to replace it right away. I did a quick search online and came across Canbat. They’re a local supplier and I bought a 12v 20ah lithium battery of them. So much lighter than the lead-acid battery. Great to see a Canadian company in the market.
Draymond G. –
Excellent battery. Powers up my mini-fridge overnight.
Bob C. –
I upgraded to a 12v 20ah lithium battery for my golf trolley. The old lead-acid batteries I had were not able to last throughout the whole course. The lithium battery is doing an excellent job right now!
Drew C. –
Great company to get your batteries from for your RV, boat motor, and electronic devices. I honestly prefer lithium batteries over the lead-acid battery due to the weight and quick chargers.
Kevin N. –
Great portable lithium battery. The 12v 20ah battery powers up my Helix 7 kayak. The charge is still very high up after 7 hours of use.
Tyrel K. –
I highly recommend lithium batteries over SLA batteries. The lithium batties power up my fish finder and led lights on my kayak. Power and charge up my electronics the whole day.
Glenn C. –
Purchased four of these 20Ah lithium batteries for the Fisheries and Oceans Canada, and connected them in series for a 48V LiFePO4 system. They are supplying power to both the weather station console (top) and a RaspberryPi microcomputer (left) which downloads data from the console on a 4 day cycle. These four 20Ah batteries have been running autonomously for about 7 months. Love the batteries and Canbat’s excellent customer service. Free shipping, even to remote sites, which is amazing!!
SAMUEL K. –
Un produit fiable que je recommande sans hésiter.
Jordan G. –
J’ai acheté quatre de ces batteries 12V 20Ah que j’ai raccordées en série pour créer un système de 48V 20Ah pour mon scooter électrique. J’ai remplacé mon ancien système de batteries au plomb-acide par celui-ci et, autant dire que j’aurais aimé le faire plus tôt ! La différence est énorme et je suis désormais tranquille. Je peux utiliser mon scooter sans avoir à me soucier de maintenir le niveau de batterie au-dessus de 50% sous peine d’endommager les batteries. J’adore les batteries au lithium que Canbat m’a proposées. Un grand merci à l’équipe Canbat !
Jean M. –
Utilisant un Garmin LVS 34 Livescope et un Garmin 93 UHD2 pour un courant total de moins de 2 ampères, cette batterie de 20 Ah offre plus de 10 heures d’autonomie. La fonctionnalité Bluetooth est tout simplement exceptionnelle. Je recommande vivement à ceux qui recherchent une option Livescope portable.
Justin G. –
Cette batterie est une véritable petite centrale électrique. Elle alimente mon Garmin LiveScope avec un écran 126sv et je peux pêcher du lever au coucher du soleil sans aucun problème. Je la recommande vivement.
Steve S –
I bought this battery to power a field-charging system for LiPo batteries used in my radio-controlled model airplanes. I needed to add an anti-spark connector (XT90) between the LiFePO4 battery and my LiPo charger because the battery management system in the LiFe battery would shut down whenever I connected the LiPo charger. My guess is that the LiPo charger has some big capacitors in its DC input circuit that the LiFe BMS interpreted as a short circuit or an over-current surge in the first moments of connection, tripping its self-protection function. Once I added the anti-spark connector to the charger input connection, the LiFePO4 battery performed flawlessly as a power source for my field charger.