CSPower/CSBattery HTL12-250
The CSPower/CSBattery HTL12-250 is a battery pack with a nominal voltage of 12 and a capacity of 191Ah at the 5-hour rate.
Last updated: 17 October 2026
Battery and charging
- Battery weight
- 71.3
- Voltage
- 12
- Chemistry
- GEL
- Internal resistance
- ≤1.5mΩ
- Capacity, at the 20-hour rate
- 250/20HR
- Capacity, at the 5-hour rate
- 191Ah
- Capacity, at the 10-hour rate
- 226Ah
- Maximum discharge current, as the maker labels it
- 1440A(5s)
- Charging voltage
- 13.6 - 13.8V
- Float voltage
- 13.6 - 13.8V
- How fast it loses charge sitting idle
- 3%
“HTL12-250 12 250/20HR 520 268 203 209 71.3 T5”
Source: cspbattery.com/htl-pro-6v250ah-high-temperature-deep-cycle-gel-battery-product
“HTL12-250 12 250/20HR 520 268 203 209 71.3 T5”
Source: cspbattery.com/htl-pro-6v250ah-high-temperature-deep-cycle-gel-battery-product
Unconfirmed
“CSPower High-Temp Long life Deep cycle GEL Battery HTL12-250”
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
“Internal Resistance Full Charged Battery@ 25ºC ≤1.5mΩ”
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
“HTL12-250 12 250/20HR 520 268 203 209 71.3 T5”
Source: cspbattery.com/htl-pro-6v250ah-high-temperature-deep-cycle-gel-battery-product
“5 hour rate (66.8A, 5.25V) 191Ah”
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
“Capacity @ 25ºC 10 hour rate (37.8A, 5.4V) 226Ah”
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
“Max.Discharge Current @ 25ºC 1440A(5s)”
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
“Cycle Use Initial Charging Current Less than 55A Voltage 13.6 - 13.8V”
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
“Charge (Constant Voltage) @ 25ºC Standby Use Initial Charging Current Less than 55A Voltage 13.6 - 13.8V”
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
“Self-Discharge@25ºCper Month 3%”
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
Battery care and safety
- Temperatures it may be charged in
- -25ºC~60ºC
- Temperatures it may be run in
- -25ºC~60ºC
- Temperatures it may be stored in
- -25ºC~60ºC
Unconfirmed
Row from the maker’s page: “Charge” | “-25ºC~60ºC”
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
“Ambient Temperature Discharge -25ºC~60ºC”
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
Unconfirmed
Row from the maker’s page: “Storage” | “-25ºC~60ºC”
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
Size and fit
- Overall dimensions
- 520 268 203 209
- Terminals
- T5
“HTL12-250 12 250/20HR 520 268 203 209 71.3 T5”
Source: cspbattery.com/htl-pro-6v250ah-high-temperature-deep-cycle-gel-battery-product
“HTL12-250 12 250/20HR 520 268 203 209 71.3 T5”
Source: cspbattery.com/htl-pro-6v250ah-high-temperature-deep-cycle-gel-battery-product
Identity
- Model code
- HTL12-250
“HTL12-250 12 250/20HR 520 268 203 209 71.3 T5”
Source: cspbattery.com/htl-pro-6v250ah-high-temperature-deep-cycle-gel-battery-product
Sources
- AGM, Gel, Solar battery, Lead carbon battery, Lithium battery-CSPOWERArchived document
Source: cspbattery.com/htl-pro-6v250ah-high-temperature-deep-cycle-gel-battery-product
Retrieved October 18, 2026
- Cspower High-Temperature Deepcycle-Gel Solar Inverter Battery 12V 250ah Power Supply - 2026 Deep Cycle Gel Battery, 12V250ah Solar Battery price | Made-in-china.comArchived document
Source: cspower.en.made-in-china.com/product/zjWEdBHVLKcU/China-Cspower-High-Temperature-Deepcycle-Gel-Solar-Inverter-Battery-12V-250ah-Power-Supply.html
Retrieved October 17, 2026