OptiMate Lithium 4s front view shows compact LiFePO4 charger ready for use.
OptiMate Lithium 4s back panel highlights ports and protection for safe charging.
OptiMate Lithium 4s BMS wake mode demonstrates safe battery revival.
OptiMate Lithium 4s LED indicators display charging status and protection features.
OptiMate Lithium 4s connectors emphasize easy, secure attachment to packs.
OptiMate Lithium 4s in-use shows practical maintenance during vehicle storage.
OptiMate Lithium 4s front view shows compact LiFePO4 charger ready for use.
OptiMate Lithium 4s back panel highlights ports and protection for safe charging.
OptiMate Lithium 4s BMS wake mode demonstrates safe battery revival.
OptiMate Lithium 4s LED indicators display charging status and protection features.
OptiMate Lithium 4s connectors emphasize easy, secure attachment to packs.
OptiMate Lithium 4s in-use shows practical maintenance during vehicle storage.

OptiMate Lithium 4s 0.8A TM-471 | 12.8V LiFePO4 Battery Charger & Maintainer

Keep LiFePO4 batteries healthy with a dedicated maintenance charger The OptiMate Lithium 4s 0.8A TM-471 is a...
Vendor: OptiMate
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OptiMate Lithium 4s front view shows compact LiFePO4 charger ready for use.

OptiMate Lithium 4s 0.8A TM-471 | 12.8V LiFePO4 Battery Charger & Maintainer

£88.11
OptiMate Lithium 4s front view shows compact LiFePO4 charger ready for use.
OptiMate Lithium 4s back panel highlights ports and protection for safe charging.
OptiMate Lithium 4s BMS wake mode demonstrates safe battery revival.
OptiMate Lithium 4s LED indicators display charging status and protection features.
OptiMate Lithium 4s connectors emphasize easy, secure attachment to packs.
OptiMate Lithium 4s in-use shows practical maintenance during vehicle storage.

OptiMate Lithium 4s 0.8A TM-471 | 12.8V LiFePO4 Battery Charger & Maintainer

£88.11
Description
Description
x

Keep LiFePO4 batteries healthy with a dedicated maintenance charger

The OptiMate Lithium 4s 0.8A TM-471 is a compact, sealed charger designed for high-performance LiFePO4 packs in 12.8V systems. With an eight-step charging process at 0.8A, it aims to deliver gentle, consistent power while guarding sophisticated battery management systems (BMS).

This charger places a strong emphasis on safe, battery-friendly operation. It can wake a battery out of sleep mode using an integrated BMS-aware function, waking the pack without bypassing protective circuitry. The result is a maintenance routine that supports readiness without overcharging or stress to critical cells.

Key benefits and protections

  • Designed to help maintain consistent charge levels for LiFePO4/LFP chemistry, supporting ready-to-use packs.
  • Built to protect the battery with circuitry that respects the BMS and prevents unsafe conditions during charge.
  • Offers a maintenance approach that can recover batteries that appear down, ensuring you have power when you need it.
  • Eight-step charging and state-aware control may contribute to longer cycle life when used as part of regular care routines.

Real-world use cases

  • Seasonal storage for vehicles, boats, ATVs, or power tools that use LiFePO4 packs.
  • Routine maintenance for fleets or personal gear stored in garages, workshops, or sheds.
  • Home or shop environments where a compact, reliable charger helps keep battery banks balanced and ready.

How it works

The unit monitors the pack and follows a structured eight-step process, delivering controlled current and voltage to reach a safe, ready state. Clear indicators communicate status and protection events.

Tips for best results

  • Connect only to compatible 12.8V LiFePO4 batteries and follow safety guidelines.
  • Place in a ventilated area and inspect connectors before use to ensure secure, clean contact.

Note: Actual results may vary with battery age, temperature, and storage conditions. The TM-471 is designed to be a dependable maintenance partner for LiFePO4 packs.

FAQ

Q: What batteries are compatible with OptiMate Lithium 4s 0.8A TM-471?

A: Designed for LiFePO4/LFP packs and 12.8V systems, it provides maintenance with BMS-aware safety during charging.

Q: What makes the TM-471 different from ordinary chargers?

A: Eight-step charging, BMS wake-up mode, and protective features may help maintain battery health and readiness.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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